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help / color / mirror / Atom feedFrom: David G. Johnston <david.g.johnston@gmail.com>
To: long76.git@mail.ru <long76.git@mail.ru>
To: pgsql-bugs@lists.postgresql.org <pgsql-bugs@lists.postgresql.org>
Subject: BUG #19379: Role pg_read_all_data don't allowed read large objects
Date: Thu, 15 Jan 2026 06:36:35 -0700
Message-ID: <CAKFQuwZbtoAs1Ew62aC25R1r7i=M1J_3UmCsssidwDn2Xe6XhA@mail.gmail.com> (raw)
In-Reply-To: <19379-089536632927293f@postgresql.org>
References: <19379-089536632927293f@postgresql.org>
On Thursday, January 15, 2026, PG Bug reporting form <noreply@postgresql.org>
wrote:
> The following bug has been logged on the website:
>
> Bug reference: 19379
> Logged by: Misha Shaygu
> Email address: long76.git@mail.ru
> PostgreSQL version: 17.7
> Operating system: Kubuntu 24.04
> Description:
>
> My goal: create role for backup any database on server
>
> Steps:
> 1. CREATE USER backup_user;
> 2. GRANT pg_read_all_data TO backup_user;
> 3. pg_dump my_db
> 4. got error to read large object
>
> Following by links
> https://www.postgresql.org/docs/17/predefined-roles.html
> https://www.postgresql.org/docs/17/lo-implementation.html
> "SELECT privileges are required to read a large object" and role
> "pg_read_all_data" grant it, but it don't work!
>
> Please fix it, thanks!
>
The docs you link note that all data is “tables, views, sequences”. Large
objects are not listed. Maybe that means the name is a bit misleading but
it’s working as documented.
Likewise, the LO page doesn’t say anything about read all being applicable.
David J.
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To: pgsql-bugs@postgresql.org
Cc: david.g.johnston@gmail.com, long76.git@mail.ru, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19379: Role pg_read_all_data don't allowed read large objects
In-Reply-To: <CAKFQuwZbtoAs1Ew62aC25R1r7i=M1J_3UmCsssidwDn2Xe6XhA@mail.gmail.com>
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